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linux/sound/soc/sof/sof-pci-dev.c
Daniel Baluta 285880a23d
ASoC: SOF: Make creation of machine device from SOF core optional 
Currently, SOF probes machine drivers by creating a platform device
and passing the machine description as private data.

This is driven by the ACPI restrictions. Ideally, ACPI tables
should contain the description for the machine driver. This is
not possible because ACPI tables are frozen and used on multiple
OS-es (e.g Windows).

In the case of Device Tree we don't have this restriction, so we
choose to probe the machine drivers by creating a DT node as is
the standard ALSA way.

This patch makes the probing of machine drivers from SOF
core optional allowing for Device Tree platforms to decouple
the SOF core from machine driver probing.

Along with this, it also consolidates the machine driver selection
for Intel platforms by defining optional ops for selecting the machine
driver based on the ACPI match for HDA and non-HDA platforms and
setting the mach params.

Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191204211556.12671-11-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-12-09 18:39:35 +00:00

427 lines
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// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
//
// This file is provided under a dual BSD/GPLv2 license. When using or
// redistributing this file, you may do so under either license.
//
// Copyright(c) 2018 Intel Corporation. All rights reserved.
//
// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
//
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/pm_runtime.h>
#include <sound/intel-dsp-config.h>
#include <sound/soc-acpi.h>
#include <sound/soc-acpi-intel-match.h>
#include <sound/sof.h>
#include "ops.h"
/* platform specific devices */
#include "intel/shim.h"
#include "intel/hda.h"
static char *fw_path;
module_param(fw_path, charp, 0444);
MODULE_PARM_DESC(fw_path, "alternate path for SOF firmware.");
static char *tplg_path;
module_param(tplg_path, charp, 0444);
MODULE_PARM_DESC(tplg_path, "alternate path for SOF topology.");
static int sof_pci_debug;
module_param_named(sof_pci_debug, sof_pci_debug, int, 0444);
MODULE_PARM_DESC(sof_pci_debug, "SOF PCI debug options (0x0 all off)");
#define SOF_PCI_DISABLE_PM_RUNTIME BIT(0)
#if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
static const struct sof_dev_desc bxt_desc = {
.machines = snd_soc_acpi_intel_bxt_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
.irqindex_host_ipc = -1,
.resindex_dma_base = -1,
.chip_info = &apl_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-apl.ri",
.nocodec_fw_filename = "sof-apl.ri",
.nocodec_tplg_filename = "sof-apl-nocodec.tplg",
.ops = &sof_apl_ops,
.arch_ops = &sof_xtensa_arch_ops
};
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE)
static const struct sof_dev_desc glk_desc = {
.machines = snd_soc_acpi_intel_glk_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
.irqindex_host_ipc = -1,
.resindex_dma_base = -1,
.chip_info = &apl_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-glk.ri",
.nocodec_fw_filename = "sof-glk.ri",
.nocodec_tplg_filename = "sof-glk-nocodec.tplg",
.ops = &sof_apl_ops,
.arch_ops = &sof_xtensa_arch_ops
};
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_MERRIFIELD)
static struct snd_soc_acpi_mach sof_tng_machines[] = {
{
.id = "INT343A",
.drv_name = "edison",
.sof_fw_filename = "sof-byt.ri",
.sof_tplg_filename = "sof-byt.tplg",
},
{}
};
static const struct sof_dev_desc tng_desc = {
.machines = sof_tng_machines,
.resindex_lpe_base = 3, /* IRAM, but subtract IRAM offset */
.resindex_pcicfg_base = -1,
.resindex_imr_base = 0,
.irqindex_host_ipc = -1,
.resindex_dma_base = -1,
.chip_info = &tng_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-byt.ri",
.nocodec_fw_filename = "sof-byt.ri",
.nocodec_tplg_filename = "sof-byt.tplg",
.ops = &sof_tng_ops,
.arch_ops = &sof_xtensa_arch_ops
};
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_CANNONLAKE)
static const struct sof_dev_desc cnl_desc = {
.machines = snd_soc_acpi_intel_cnl_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
.irqindex_host_ipc = -1,
.resindex_dma_base = -1,
.chip_info = &cnl_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-cnl.ri",
.nocodec_fw_filename = "sof-cnl.ri",
.nocodec_tplg_filename = "sof-cnl-nocodec.tplg",
.ops = &sof_cnl_ops,
.arch_ops = &sof_xtensa_arch_ops
};
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_COFFEELAKE)
static const struct sof_dev_desc cfl_desc = {
.machines = snd_soc_acpi_intel_cfl_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
.irqindex_host_ipc = -1,
.resindex_dma_base = -1,
.chip_info = &cnl_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-cfl.ri",
.nocodec_fw_filename = "sof-cfl.ri",
.nocodec_tplg_filename = "sof-cnl-nocodec.tplg",
.ops = &sof_cnl_ops,
.arch_ops = &sof_xtensa_arch_ops
};
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_COMETLAKE_LP) || \
IS_ENABLED(CONFIG_SND_SOC_SOF_COMETLAKE_H)
static const struct sof_dev_desc cml_desc = {
.machines = snd_soc_acpi_intel_cml_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
.irqindex_host_ipc = -1,
.resindex_dma_base = -1,
.chip_info = &cnl_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-cml.ri",
.nocodec_fw_filename = "sof-cml.ri",
.nocodec_tplg_filename = "sof-cnl-nocodec.tplg",
.ops = &sof_cnl_ops,
.arch_ops = &sof_xtensa_arch_ops
};
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_ICELAKE)
static const struct sof_dev_desc icl_desc = {
.machines = snd_soc_acpi_intel_icl_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
.irqindex_host_ipc = -1,
.resindex_dma_base = -1,
.chip_info = &icl_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-icl.ri",
.nocodec_fw_filename = "sof-icl.ri",
.nocodec_tplg_filename = "sof-icl-nocodec.tplg",
.ops = &sof_cnl_ops,
.arch_ops = &sof_xtensa_arch_ops
};
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_TIGERLAKE)
static const struct sof_dev_desc tgl_desc = {
.machines = snd_soc_acpi_intel_tgl_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
.irqindex_host_ipc = -1,
.resindex_dma_base = -1,
.chip_info = &tgl_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-tgl.ri",
.nocodec_fw_filename = "sof-tgl.ri",
.nocodec_tplg_filename = "sof-tgl-nocodec.tplg",
.ops = &sof_cnl_ops,
.arch_ops = &sof_xtensa_arch_ops
};
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_ELKHARTLAKE)
static const struct sof_dev_desc ehl_desc = {
.machines = snd_soc_acpi_intel_ehl_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
.irqindex_host_ipc = -1,
.resindex_dma_base = -1,
.chip_info = &ehl_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.default_fw_filename = "sof-ehl.ri",
.nocodec_fw_filename = "sof-ehl.ri",
.nocodec_tplg_filename = "sof-ehl-nocodec.tplg",
.ops = &sof_cnl_ops,
.arch_ops = &sof_xtensa_arch_ops
};
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_JASPERLAKE)
static const struct sof_dev_desc jsl_desc = {
.machines = snd_soc_acpi_intel_jsl_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
.irqindex_host_ipc = -1,
.resindex_dma_base = -1,
.chip_info = &jsl_chip_info,
.default_fw_path = "intel/sof",
.default_tplg_path = "intel/sof-tplg",
.nocodec_fw_filename = "sof-jsl.ri",
.nocodec_tplg_filename = "sof-jsl-nocodec.tplg",
.ops = &sof_cnl_ops,
.arch_ops = &sof_xtensa_arch_ops
};
#endif
static const struct dev_pm_ops sof_pci_pm = {
.prepare = snd_sof_prepare,
.complete = snd_sof_complete,
SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
snd_sof_runtime_idle)
};
static void sof_pci_probe_complete(struct device *dev)
{
dev_dbg(dev, "Completing SOF PCI probe");
if (sof_pci_debug & SOF_PCI_DISABLE_PM_RUNTIME)
return;
/* allow runtime_pm */
pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS);
pm_runtime_use_autosuspend(dev);
/*
* runtime pm for pci device is "forbidden" by default.
* so call pm_runtime_allow() to enable it.
*/
pm_runtime_allow(dev);
/* mark last_busy for pm_runtime to make sure not suspend immediately */
pm_runtime_mark_last_busy(dev);
/* follow recommendation in pci-driver.c to decrement usage counter */
pm_runtime_put_noidle(dev);
}
static int sof_pci_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
struct device *dev = &pci->dev;
const struct sof_dev_desc *desc =
(const struct sof_dev_desc *)pci_id->driver_data;
struct snd_sof_pdata *sof_pdata;
const struct snd_sof_dsp_ops *ops;
int ret;
ret = snd_intel_dsp_driver_probe(pci);
if (ret != SND_INTEL_DSP_DRIVER_ANY &&
ret != SND_INTEL_DSP_DRIVER_SOF)
return -ENODEV;
dev_dbg(&pci->dev, "PCI DSP detected");
/* get ops for platform */
ops = desc->ops;
if (!ops) {
dev_err(dev, "error: no matching PCI descriptor ops\n");
return -ENODEV;
}
sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
if (!sof_pdata)
return -ENOMEM;
ret = pcim_enable_device(pci);
if (ret < 0)
return ret;
ret = pci_request_regions(pci, "Audio DSP");
if (ret < 0)
return ret;
sof_pdata->name = pci_name(pci);
sof_pdata->desc = (struct sof_dev_desc *)pci_id->driver_data;
sof_pdata->dev = dev;
sof_pdata->fw_filename = desc->default_fw_filename;
/* alternate fw and tplg filenames ? */
if (fw_path)
sof_pdata->fw_filename_prefix = fw_path;
else
sof_pdata->fw_filename_prefix =
sof_pdata->desc->default_fw_path;
if (tplg_path)
sof_pdata->tplg_filename_prefix = tplg_path;
else
sof_pdata->tplg_filename_prefix =
sof_pdata->desc->default_tplg_path;
#if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
/* set callback to enable runtime_pm */
sof_pdata->sof_probe_complete = sof_pci_probe_complete;
#endif
/* call sof helper for DSP hardware probe */
ret = snd_sof_device_probe(dev, sof_pdata);
if (ret) {
dev_err(dev, "error: failed to probe DSP hardware!\n");
goto release_regions;
}
#if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
sof_pci_probe_complete(dev);
#endif
return ret;
release_regions:
pci_release_regions(pci);
return ret;
}
static void sof_pci_remove(struct pci_dev *pci)
{
/* call sof helper for DSP hardware remove */
snd_sof_device_remove(&pci->dev);
/* follow recommendation in pci-driver.c to increment usage counter */
if (!(sof_pci_debug & SOF_PCI_DISABLE_PM_RUNTIME))
pm_runtime_get_noresume(&pci->dev);
/* release pci regions and disable device */
pci_release_regions(pci);
}
/* PCI IDs */
static const struct pci_device_id sof_pci_ids[] = {
#if IS_ENABLED(CONFIG_SND_SOC_SOF_MERRIFIELD)
{ PCI_DEVICE(0x8086, 0x119a),
.driver_data = (unsigned long)&tng_desc},
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
/* BXT-P & Apollolake */
{ PCI_DEVICE(0x8086, 0x5a98),
.driver_data = (unsigned long)&bxt_desc},
{ PCI_DEVICE(0x8086, 0x1a98),
.driver_data = (unsigned long)&bxt_desc},
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE)
{ PCI_DEVICE(0x8086, 0x3198),
.driver_data = (unsigned long)&glk_desc},
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_CANNONLAKE)
{ PCI_DEVICE(0x8086, 0x9dc8),
.driver_data = (unsigned long)&cnl_desc},
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_COFFEELAKE)
{ PCI_DEVICE(0x8086, 0xa348),
.driver_data = (unsigned long)&cfl_desc},
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_ICELAKE)
{ PCI_DEVICE(0x8086, 0x34C8),
.driver_data = (unsigned long)&icl_desc},
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_JASPERLAKE)
{ PCI_DEVICE(0x8086, 0x38c8),
.driver_data = (unsigned long)&jsl_desc},
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_COMETLAKE_LP)
{ PCI_DEVICE(0x8086, 0x02c8),
.driver_data = (unsigned long)&cml_desc},
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_COMETLAKE_H)
{ PCI_DEVICE(0x8086, 0x06c8),
.driver_data = (unsigned long)&cml_desc},
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_TIGERLAKE)
{ PCI_DEVICE(0x8086, 0xa0c8),
.driver_data = (unsigned long)&tgl_desc},
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_ELKHARTLAKE)
{ PCI_DEVICE(0x8086, 0x4b55),
.driver_data = (unsigned long)&ehl_desc},
#endif
{ 0, }
};
MODULE_DEVICE_TABLE(pci, sof_pci_ids);
/* pci_driver definition */
static struct pci_driver snd_sof_pci_driver = {
.name = "sof-audio-pci",
.id_table = sof_pci_ids,
.probe = sof_pci_probe,
.remove = sof_pci_remove,
.driver = {
.pm = &sof_pci_pm,
},
};
module_pci_driver(snd_sof_pci_driver);
MODULE_LICENSE("Dual BSD/GPL");
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